Di Mauro, D., M Di Persio, S. Lepidi, F. Masci, G. Mele, A. Meloni, and P. Palangio. 2008. “The INGV Tectonomagnetic Network in Central Italy. Fifteen Years of Observations and Future Developments: An Update”. Annals of Geophysics 51 (1):137-46. https://doi.org/10.4401/ag-4439.